Which of the following reactions produces a yellow precipitate?

N a O H (a q) + H C l (a q) \to N a C l (s) + H_{2} O

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N a O H (a q) + B a C l (a q) \to B a O H (s) + N a C l (a q)

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P b (N O_{3})_{2} (a q) + 2 K I (a q) \to 2 K N O_{3} (a q) + P b I_{2} (s)

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C u O (s) + M g (s) \to C u (s) + M g O (s)

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Solution

The correct option is B $P b (N O_{3})_{2} (a q) + 2 K I (a q) \to 2 K N O_{3} (a q) + P b I_{2} (s)$
$P b (N O_{3})_{2} (a q) + 2 K I (a q) ⟶ 2 K N O_{3} (a q) + P b I_{2} (s) Y e l l o w$
When lead nitrate is added to potassium iodide the particles combine and create two new compounds, a yellow solid called lead iodide is formed. This yellow solid indicates that a chemical change has taken place.

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Similar questions

Q. Identify the type of the following reaction:

2 K I (a q) + P b (N O_{3})_{2} (a q) \to 2 K N O_{3} (a q) + P b I_{2} (s)

Q. What is one of the spectator ions in the following reaction?

P b (N O_{3})_{2} (a q) + 2 K I (a q) \to P b I_{2} (s) + 2 K N O_{3} (a q)

Q. For which of the following reactions,

Δ H \neq Δ U

Complete and balance the following chemical equations :

(a) $Z n (s) + H C l (a q) \to$

(b) $N a_{2} C O_{3} (s) + H C l (a q) \to$

(d) $N a O H (a q) + H C l (a q) \to$

(e) $C u O (s) + H C l (a q) \to$

Given the reaction:-

$P b {(N O_{3})}_{2} (a q) + 2 K I \to P b I_{2} (s) + 2 K N O_{3} (a q)$ What is the mass of $P b I_{2}$ that will precipitate if 10.2 g of $P b {(N O_{3})}_{2}$ is mixed with 5.73 g of $K I$ in a sufficient quantity of $H_{2} O$ ?

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